Where does “WhatsApper” come from?

WhatsApper (English) comes from English ER, from Turkish er, from Ottoman Turkish ایر, from Old Anatolian Turkish ایر, from Proto-Turkic ēder — saddle.

WhatsApper (English): A user of the WhatsApp instant messaging service

Definitions

  1. A user of the WhatsApp instant messaging service

Ancestry of “WhatsApper”, step by step

WhatsApper traces back through two separate lines of ancestry.

via English ER

StepLanguageWordMeaning
1EnglishERThe statistic "Earned Run"; Initialism of...
2Turkisherearly; brave; man, male
3Ottoman Turkishایرsaddle, a seat for a rider placed on the back of a horse or other animal
4Old Anatolian Turkishایرearly, at a time in advance of the usual or expected event
5Proto-Turkicēdersaddle

via English Whatsapp

StepLanguageWordMeaning
1EnglishWhatsappAlternative letter-case form of WhatsApp
2Englishwhat's uphow are you doing?
Every word from Proto-Turkic ēderEvery word from Old Anatolian Turkish ایرEvery word from Ottoman Turkish ایر